1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * w83791d.c - Part of lm_sensors, Linux kernel modules for hardware
   4 *	       monitoring
   5 *
   6 * Copyright (C) 2006-2007 Charles Spirakis <bezaur@gmail.com>
   7 */
   8
   9/*
  10 * Supports following chips:
  11 *
  12 * Chip		#vin	#fanin	#pwm	#temp	wchipid	vendid	i2c	ISA
  13 * w83791d	10	5	5	3	0x71	0x5ca3	yes	no
  14 *
  15 * The w83791d chip appears to be part way between the 83781d and the
  16 * 83792d. Thus, this file is derived from both the w83792d.c and
  17 * w83781d.c files.
  18 *
  19 * The w83791g chip is the same as the w83791d but lead-free.
  20 */
  21
  22#include <linux/module.h>
  23#include <linux/init.h>
  24#include <linux/slab.h>
  25#include <linux/i2c.h>
  26#include <linux/hwmon.h>
  27#include <linux/hwmon-vid.h>
  28#include <linux/hwmon-sysfs.h>
  29#include <linux/err.h>
  30#include <linux/mutex.h>
  31#include <linux/jiffies.h>
  32
  33#define NUMBER_OF_VIN		10
  34#define NUMBER_OF_FANIN		5
  35#define NUMBER_OF_TEMPIN	3
  36#define NUMBER_OF_PWM		5
  37
  38/* Addresses to scan */
  39static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
  40						I2C_CLIENT_END };
  41
  42/* Insmod parameters */
  43
  44static unsigned short force_subclients[4];
  45module_param_array(force_subclients, short, NULL, 0);
  46MODULE_PARM_DESC(force_subclients,
  47		 "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}");
  48
  49static bool reset;
  50module_param(reset, bool, 0);
  51MODULE_PARM_DESC(reset, "Set to one to force a hardware chip reset");
  52
  53static bool init;
  54module_param(init, bool, 0);
  55MODULE_PARM_DESC(init, "Set to one to force extra software initialization");
  56
  57/* The W83791D registers */
  58static const u8 W83791D_REG_IN[NUMBER_OF_VIN] = {
  59	0x20,			/* VCOREA in DataSheet */
  60	0x21,			/* VINR0 in DataSheet */
  61	0x22,			/* +3.3VIN in DataSheet */
  62	0x23,			/* VDD5V in DataSheet */
  63	0x24,			/* +12VIN in DataSheet */
  64	0x25,			/* -12VIN in DataSheet */
  65	0x26,			/* -5VIN in DataSheet */
  66	0xB0,			/* 5VSB in DataSheet */
  67	0xB1,			/* VBAT in DataSheet */
  68	0xB2			/* VINR1 in DataSheet */
  69};
  70
  71static const u8 W83791D_REG_IN_MAX[NUMBER_OF_VIN] = {
  72	0x2B,			/* VCOREA High Limit in DataSheet */
  73	0x2D,			/* VINR0 High Limit in DataSheet */
  74	0x2F,			/* +3.3VIN High Limit in DataSheet */
  75	0x31,			/* VDD5V High Limit in DataSheet */
  76	0x33,			/* +12VIN High Limit in DataSheet */
  77	0x35,			/* -12VIN High Limit in DataSheet */
  78	0x37,			/* -5VIN High Limit in DataSheet */
  79	0xB4,			/* 5VSB High Limit in DataSheet */
  80	0xB6,			/* VBAT High Limit in DataSheet */
  81	0xB8			/* VINR1 High Limit in DataSheet */
  82};
  83static const u8 W83791D_REG_IN_MIN[NUMBER_OF_VIN] = {
  84	0x2C,			/* VCOREA Low Limit in DataSheet */
  85	0x2E,			/* VINR0 Low Limit in DataSheet */
  86	0x30,			/* +3.3VIN Low Limit in DataSheet */
  87	0x32,			/* VDD5V Low Limit in DataSheet */
  88	0x34,			/* +12VIN Low Limit in DataSheet */
  89	0x36,			/* -12VIN Low Limit in DataSheet */
  90	0x38,			/* -5VIN Low Limit in DataSheet */
  91	0xB5,			/* 5VSB Low Limit in DataSheet */
  92	0xB7,			/* VBAT Low Limit in DataSheet */
  93	0xB9			/* VINR1 Low Limit in DataSheet */
  94};
  95static const u8 W83791D_REG_FAN[NUMBER_OF_FANIN] = {
  96	0x28,			/* FAN 1 Count in DataSheet */
  97	0x29,			/* FAN 2 Count in DataSheet */
  98	0x2A,			/* FAN 3 Count in DataSheet */
  99	0xBA,			/* FAN 4 Count in DataSheet */
 100	0xBB,			/* FAN 5 Count in DataSheet */
 101};
 102static const u8 W83791D_REG_FAN_MIN[NUMBER_OF_FANIN] = {
 103	0x3B,			/* FAN 1 Count Low Limit in DataSheet */
 104	0x3C,			/* FAN 2 Count Low Limit in DataSheet */
 105	0x3D,			/* FAN 3 Count Low Limit in DataSheet */
 106	0xBC,			/* FAN 4 Count Low Limit in DataSheet */
 107	0xBD,			/* FAN 5 Count Low Limit in DataSheet */
 108};
 109
 110static const u8 W83791D_REG_PWM[NUMBER_OF_PWM] = {
 111	0x81,			/* PWM 1 duty cycle register in DataSheet */
 112	0x83,			/* PWM 2 duty cycle register in DataSheet */
 113	0x94,			/* PWM 3 duty cycle register in DataSheet */
 114	0xA0,			/* PWM 4 duty cycle register in DataSheet */
 115	0xA1,			/* PWM 5 duty cycle register in DataSheet */
 116};
 117
 118static const u8 W83791D_REG_TEMP_TARGET[3] = {
 119	0x85,			/* PWM 1 target temperature for temp 1 */
 120	0x86,			/* PWM 2 target temperature for temp 2 */
 121	0x96,			/* PWM 3 target temperature for temp 3 */
 122};
 123
 124static const u8 W83791D_REG_TEMP_TOL[2] = {
 125	0x87,			/* PWM 1/2 temperature tolerance */
 126	0x97,			/* PWM 3 temperature tolerance */
 127};
 128
 129static const u8 W83791D_REG_FAN_CFG[2] = {
 130	0x84,			/* FAN 1/2 configuration */
 131	0x95,			/* FAN 3 configuration */
 132};
 133
 134static const u8 W83791D_REG_FAN_DIV[3] = {
 135	0x47,			/* contains FAN1 and FAN2 Divisor */
 136	0x4b,			/* contains FAN3 Divisor */
 137	0x5C,			/* contains FAN4 and FAN5 Divisor */
 138};
 139
 140#define W83791D_REG_BANK		0x4E
 141#define W83791D_REG_TEMP2_CONFIG	0xC2
 142#define W83791D_REG_TEMP3_CONFIG	0xCA
 143
 144static const u8 W83791D_REG_TEMP1[3] = {
 145	0x27,			/* TEMP 1 in DataSheet */
 146	0x39,			/* TEMP 1 Over in DataSheet */
 147	0x3A,			/* TEMP 1 Hyst in DataSheet */
 148};
 149
 150static const u8 W83791D_REG_TEMP_ADD[2][6] = {
 151	{0xC0,			/* TEMP 2 in DataSheet */
 152	 0xC1,			/* TEMP 2(0.5 deg) in DataSheet */
 153	 0xC5,			/* TEMP 2 Over High part in DataSheet */
 154	 0xC6,			/* TEMP 2 Over Low part in DataSheet */
 155	 0xC3,			/* TEMP 2 Thyst High part in DataSheet */
 156	 0xC4},			/* TEMP 2 Thyst Low part in DataSheet */
 157	{0xC8,			/* TEMP 3 in DataSheet */
 158	 0xC9,			/* TEMP 3(0.5 deg) in DataSheet */
 159	 0xCD,			/* TEMP 3 Over High part in DataSheet */
 160	 0xCE,			/* TEMP 3 Over Low part in DataSheet */
 161	 0xCB,			/* TEMP 3 Thyst High part in DataSheet */
 162	 0xCC}			/* TEMP 3 Thyst Low part in DataSheet */
 163};
 164
 165#define W83791D_REG_BEEP_CONFIG		0x4D
 166
 167static const u8 W83791D_REG_BEEP_CTRL[3] = {
 168	0x56,			/* BEEP Control Register 1 */
 169	0x57,			/* BEEP Control Register 2 */
 170	0xA3,			/* BEEP Control Register 3 */
 171};
 172
 173#define W83791D_REG_GPIO		0x15
 174#define W83791D_REG_CONFIG		0x40
 175#define W83791D_REG_VID_FANDIV		0x47
 176#define W83791D_REG_DID_VID4		0x49
 177#define W83791D_REG_WCHIPID		0x58
 178#define W83791D_REG_CHIPMAN		0x4F
 179#define W83791D_REG_PIN			0x4B
 180#define W83791D_REG_I2C_SUBADDR		0x4A
 181
 182#define W83791D_REG_ALARM1 0xA9	/* realtime status register1 */
 183#define W83791D_REG_ALARM2 0xAA	/* realtime status register2 */
 184#define W83791D_REG_ALARM3 0xAB	/* realtime status register3 */
 185
 186#define W83791D_REG_VBAT		0x5D
 187#define W83791D_REG_I2C_ADDR		0x48
 188
 189/*
 190 * The SMBus locks itself. The Winbond W83791D has a bank select register
 191 * (index 0x4e), but the driver only accesses registers in bank 0. Since
 192 * we don't switch banks, we don't need any special code to handle
 193 * locking access between bank switches
 194 */
 195static inline int w83791d_read(struct i2c_client *client, u8 reg)
 196{
 197	return i2c_smbus_read_byte_data(client, reg);
 198}
 199
 200static inline int w83791d_write(struct i2c_client *client, u8 reg, u8 value)
 201{
 202	return i2c_smbus_write_byte_data(client, reg, value);
 203}
 204
 205/*
 206 * The analog voltage inputs have 16mV LSB. Since the sysfs output is
 207 * in mV as would be measured on the chip input pin, need to just
 208 * multiply/divide by 16 to translate from/to register values.
 209 */
 210#define IN_TO_REG(val)		(clamp_val((((val) + 8) / 16), 0, 255))
 211#define IN_FROM_REG(val)	((val) * 16)
 212
 213static u8 fan_to_reg(long rpm, int div)
 214{
 215	if (rpm == 0)
 216		return 255;
 217	rpm = clamp_val(rpm, 1, 1000000);
 218	return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
 219}
 220
 221#define FAN_FROM_REG(val, div)	((val) == 0 ? -1 : \
 222				((val) == 255 ? 0 : \
 223					1350000 / ((val) * (div))))
 224
 225/* for temp1 which is 8-bit resolution, LSB = 1 degree Celsius */
 226#define TEMP1_FROM_REG(val)	((val) * 1000)
 227#define TEMP1_TO_REG(val)	((val) <= -128000 ? -128 : \
 228				 (val) >= 127000 ? 127 : \
 229				 (val) < 0 ? ((val) - 500) / 1000 : \
 230				 ((val) + 500) / 1000)
 231
 232/*
 233 * for temp2 and temp3 which are 9-bit resolution, LSB = 0.5 degree Celsius
 234 * Assumes the top 8 bits are the integral amount and the bottom 8 bits
 235 * are the fractional amount. Since we only have 0.5 degree resolution,
 236 * the bottom 7 bits will always be zero
 237 */
 238#define TEMP23_FROM_REG(val)	((val) / 128 * 500)
 239#define TEMP23_TO_REG(val)	(DIV_ROUND_CLOSEST(clamp_val((val), -128000, \
 240						   127500), 500) * 128)
 241
 242/* for thermal cruise target temp, 7-bits, LSB = 1 degree Celsius */
 243#define TARGET_TEMP_TO_REG(val)	DIV_ROUND_CLOSEST(clamp_val((val), 0, 127000), \
 244						  1000)
 245
 246/* for thermal cruise temp tolerance, 4-bits, LSB = 1 degree Celsius */
 247#define TOL_TEMP_TO_REG(val)	DIV_ROUND_CLOSEST(clamp_val((val), 0, 15000), \
 248						  1000)
 249
 250#define BEEP_MASK_TO_REG(val)		((val) & 0xffffff)
 251#define BEEP_MASK_FROM_REG(val)		((val) & 0xffffff)
 252
 253#define DIV_FROM_REG(val)		(1 << (val))
 254
 255static u8 div_to_reg(int nr, long val)
 256{
 257	int i;
 258
 259	/* fan divisors max out at 128 */
 260	val = clamp_val(val, 1, 128) >> 1;
 261	for (i = 0; i < 7; i++) {
 262		if (val == 0)
 263			break;
 264		val >>= 1;
 265	}
 266	return (u8) i;
 267}
 268
 269struct w83791d_data {
 270	struct device *hwmon_dev;
 271	struct mutex update_lock;
 272
 273	bool valid;			/* true if following fields are valid */
 274	unsigned long last_updated;	/* In jiffies */
 275
 276	/* volts */
 277	u8 in[NUMBER_OF_VIN];		/* Register value */
 278	u8 in_max[NUMBER_OF_VIN];	/* Register value */
 279	u8 in_min[NUMBER_OF_VIN];	/* Register value */
 280
 281	/* fans */
 282	u8 fan[NUMBER_OF_FANIN];	/* Register value */
 283	u8 fan_min[NUMBER_OF_FANIN];	/* Register value */
 284	u8 fan_div[NUMBER_OF_FANIN];	/* Register encoding, shifted right */
 285
 286	/* Temperature sensors */
 287
 288	s8 temp1[3];		/* current, over, thyst */
 289	s16 temp_add[2][3];	/* fixed point value. Top 8 bits are the
 290				 * integral part, bottom 8 bits are the
 291				 * fractional part. We only use the top
 292				 * 9 bits as the resolution is only
 293				 * to the 0.5 degree C...
 294				 * two sensors with three values
 295				 * (cur, over, hyst)
 296				 */
 297
 298	/* PWMs */
 299	u8 pwm[5];		/* pwm duty cycle */
 300	u8 pwm_enable[3];	/* pwm enable status for fan 1-3
 301				 * (fan 4-5 only support manual mode)
 302				 */
 303
 304	u8 temp_target[3];	/* pwm 1-3 target temperature */
 305	u8 temp_tolerance[3];	/* pwm 1-3 temperature tolerance */
 306
 307	/* Misc */
 308	u32 alarms;		/* realtime status register encoding,combined */
 309	u8 beep_enable;		/* Global beep enable */
 310	u32 beep_mask;		/* Mask off specific beeps */
 311	u8 vid;			/* Register encoding, combined */
 312	u8 vrm;			/* hwmon-vid */
 313};
 314
 315static int w83791d_probe(struct i2c_client *client);
 316static int w83791d_detect(struct i2c_client *client,
 317			  struct i2c_board_info *info);
 318static void w83791d_remove(struct i2c_client *client);
 319
 320static int w83791d_read(struct i2c_client *client, u8 reg);
 321static int w83791d_write(struct i2c_client *client, u8 reg, u8 value);
 322static struct w83791d_data *w83791d_update_device(struct device *dev);
 323
 324#ifdef DEBUG
 325static void w83791d_print_debug(struct w83791d_data *data, struct device *dev);
 326#endif
 327
 328static void w83791d_init_client(struct i2c_client *client);
 329
 330static const struct i2c_device_id w83791d_id[] = {
 331	{ "w83791d", 0 },
 332	{ }
 333};
 334MODULE_DEVICE_TABLE(i2c, w83791d_id);
 335
 336static struct i2c_driver w83791d_driver = {
 337	.class		= I2C_CLASS_HWMON,
 338	.driver = {
 339		.name = "w83791d",
 340	},
 341	.probe		= w83791d_probe,
 342	.remove		= w83791d_remove,
 343	.id_table	= w83791d_id,
 344	.detect		= w83791d_detect,
 345	.address_list	= normal_i2c,
 346};
 347
 348/* following are the sysfs callback functions */
 349#define show_in_reg(reg) \
 350static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
 351			char *buf) \
 352{ \
 353	struct sensor_device_attribute *sensor_attr = \
 354						to_sensor_dev_attr(attr); \
 355	struct w83791d_data *data = w83791d_update_device(dev); \
 356	int nr = sensor_attr->index; \
 357	return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \
 358}
 359
 360show_in_reg(in);
 361show_in_reg(in_min);
 362show_in_reg(in_max);
 363
 364#define store_in_reg(REG, reg) \
 365static ssize_t store_in_##reg(struct device *dev, \
 366				struct device_attribute *attr, \
 367				const char *buf, size_t count) \
 368{ \
 369	struct sensor_device_attribute *sensor_attr = \
 370						to_sensor_dev_attr(attr); \
 371	struct i2c_client *client = to_i2c_client(dev); \
 372	struct w83791d_data *data = i2c_get_clientdata(client); \
 373	int nr = sensor_attr->index; \
 374	unsigned long val; \
 375	int err = kstrtoul(buf, 10, &val); \
 376	if (err) \
 377		return err; \
 378	mutex_lock(&data->update_lock); \
 379	data->in_##reg[nr] = IN_TO_REG(val); \
 380	w83791d_write(client, W83791D_REG_IN_##REG[nr], data->in_##reg[nr]); \
 381	mutex_unlock(&data->update_lock); \
 382	 \
 383	return count; \
 384}
 385store_in_reg(MIN, min);
 386store_in_reg(MAX, max);
 387
 388static struct sensor_device_attribute sda_in_input[] = {
 389	SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
 390	SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
 391	SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
 392	SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
 393	SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
 394	SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
 395	SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
 396	SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
 397	SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
 398	SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
 399};
 400
 401static struct sensor_device_attribute sda_in_min[] = {
 402	SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
 403	SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
 404	SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
 405	SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
 406	SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
 407	SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
 408	SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
 409	SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
 410	SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
 411	SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
 412};
 413
 414static struct sensor_device_attribute sda_in_max[] = {
 415	SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
 416	SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
 417	SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
 418	SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
 419	SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
 420	SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
 421	SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
 422	SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
 423	SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
 424	SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
 425};
 426
 427
 428static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
 429			char *buf)
 430{
 431	struct sensor_device_attribute *sensor_attr =
 432						to_sensor_dev_attr(attr);
 433	struct w83791d_data *data = w83791d_update_device(dev);
 434	int bitnr = sensor_attr->index;
 435
 436	return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1);
 437}
 438
 439static ssize_t store_beep(struct device *dev, struct device_attribute *attr,
 440			const char *buf, size_t count)
 441{
 442	struct sensor_device_attribute *sensor_attr =
 443						to_sensor_dev_attr(attr);
 444	struct i2c_client *client = to_i2c_client(dev);
 445	struct w83791d_data *data = i2c_get_clientdata(client);
 446	int bitnr = sensor_attr->index;
 447	int bytenr = bitnr / 8;
 448	unsigned long val;
 449	int err;
 450
 451	err = kstrtoul(buf, 10, &val);
 452	if (err)
 453		return err;
 454
 455	val = val ? 1 : 0;
 456
 457	mutex_lock(&data->update_lock);
 458
 459	data->beep_mask &= ~(0xff << (bytenr * 8));
 460	data->beep_mask |= w83791d_read(client, W83791D_REG_BEEP_CTRL[bytenr])
 461		<< (bytenr * 8);
 462
 463	data->beep_mask &= ~(1 << bitnr);
 464	data->beep_mask |= val << bitnr;
 465
 466	w83791d_write(client, W83791D_REG_BEEP_CTRL[bytenr],
 467		(data->beep_mask >> (bytenr * 8)) & 0xff);
 468
 469	mutex_unlock(&data->update_lock);
 470
 471	return count;
 472}
 473
 474static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
 475			char *buf)
 476{
 477	struct sensor_device_attribute *sensor_attr =
 478						to_sensor_dev_attr(attr);
 479	struct w83791d_data *data = w83791d_update_device(dev);
 480	int bitnr = sensor_attr->index;
 481
 482	return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
 483}
 484
 485/*
 486 * Note: The bitmask for the beep enable/disable is different than
 487 * the bitmask for the alarm.
 488 */
 489static struct sensor_device_attribute sda_in_beep[] = {
 490	SENSOR_ATTR(in0_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 0),
 491	SENSOR_ATTR(in1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 13),
 492	SENSOR_ATTR(in2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 2),
 493	SENSOR_ATTR(in3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 3),
 494	SENSOR_ATTR(in4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 8),
 495	SENSOR_ATTR(in5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 9),
 496	SENSOR_ATTR(in6_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 10),
 497	SENSOR_ATTR(in7_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 16),
 498	SENSOR_ATTR(in8_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 17),
 499	SENSOR_ATTR(in9_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 14),
 500};
 501
 502static struct sensor_device_attribute sda_in_alarm[] = {
 503	SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
 504	SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
 505	SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
 506	SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
 507	SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8),
 508	SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9),
 509	SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10),
 510	SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19),
 511	SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20),
 512	SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 14),
 513};
 514
 515#define show_fan_reg(reg) \
 516static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
 517				char *buf) \
 518{ \
 519	struct sensor_device_attribute *sensor_attr = \
 520						to_sensor_dev_attr(attr); \
 521	struct w83791d_data *data = w83791d_update_device(dev); \
 522	int nr = sensor_attr->index; \
 523	return sprintf(buf, "%d\n", \
 524		FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
 525}
 526
 527show_fan_reg(fan);
 528show_fan_reg(fan_min);
 529
 530static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
 531				const char *buf, size_t count)
 532{
 533	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 534	struct i2c_client *client = to_i2c_client(dev);
 535	struct w83791d_data *data = i2c_get_clientdata(client);
 536	int nr = sensor_attr->index;
 537	unsigned long val;
 538	int err;
 539
 540	err = kstrtoul(buf, 10, &val);
 541	if (err)
 542		return err;
 543
 544	mutex_lock(&data->update_lock);
 545	data->fan_min[nr] = fan_to_reg(val, DIV_FROM_REG(data->fan_div[nr]));
 546	w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]);
 547	mutex_unlock(&data->update_lock);
 548
 549	return count;
 550}
 551
 552static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
 553				char *buf)
 554{
 555	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 556	int nr = sensor_attr->index;
 557	struct w83791d_data *data = w83791d_update_device(dev);
 558	return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr]));
 559}
 560
 561/*
 562 * Note: we save and restore the fan minimum here, because its value is
 563 * determined in part by the fan divisor.  This follows the principle of
 564 * least surprise; the user doesn't expect the fan minimum to change just
 565 * because the divisor changed.
 566 */
 567static ssize_t store_fan_div(struct device *dev, struct device_attribute *attr,
 568				const char *buf, size_t count)
 569{
 570	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 571	struct i2c_client *client = to_i2c_client(dev);
 572	struct w83791d_data *data = i2c_get_clientdata(client);
 573	int nr = sensor_attr->index;
 574	unsigned long min;
 575	u8 tmp_fan_div;
 576	u8 fan_div_reg;
 577	u8 vbat_reg;
 578	int indx = 0;
 579	u8 keep_mask = 0;
 580	u8 new_shift = 0;
 581	unsigned long val;
 582	int err;
 583
 584	err = kstrtoul(buf, 10, &val);
 585	if (err)
 586		return err;
 587
 588	/* Save fan_min */
 589	min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
 590
 591	mutex_lock(&data->update_lock);
 592	data->fan_div[nr] = div_to_reg(nr, val);
 593
 594	switch (nr) {
 595	case 0:
 596		indx = 0;
 597		keep_mask = 0xcf;
 598		new_shift = 4;
 599		break;
 600	case 1:
 601		indx = 0;
 602		keep_mask = 0x3f;
 603		new_shift = 6;
 604		break;
 605	case 2:
 606		indx = 1;
 607		keep_mask = 0x3f;
 608		new_shift = 6;
 609		break;
 610	case 3:
 611		indx = 2;
 612		keep_mask = 0xf8;
 613		new_shift = 0;
 614		break;
 615	case 4:
 616		indx = 2;
 617		keep_mask = 0x8f;
 618		new_shift = 4;
 619		break;
 620#ifdef DEBUG
 621	default:
 622		dev_warn(dev, "store_fan_div: Unexpected nr seen: %d\n", nr);
 623		count = -EINVAL;
 624		goto err_exit;
 625#endif
 626	}
 627
 628	fan_div_reg = w83791d_read(client, W83791D_REG_FAN_DIV[indx])
 629			& keep_mask;
 630	tmp_fan_div = (data->fan_div[nr] << new_shift) & ~keep_mask;
 631
 632	w83791d_write(client, W83791D_REG_FAN_DIV[indx],
 633				fan_div_reg | tmp_fan_div);
 634
 635	/* Bit 2 of fans 0-2 is stored in the vbat register (bits 5-7) */
 636	if (nr < 3) {
 637		keep_mask = ~(1 << (nr + 5));
 638		vbat_reg = w83791d_read(client, W83791D_REG_VBAT)
 639				& keep_mask;
 640		tmp_fan_div = (data->fan_div[nr] << (3 + nr)) & ~keep_mask;
 641		w83791d_write(client, W83791D_REG_VBAT,
 642				vbat_reg | tmp_fan_div);
 643	}
 644
 645	/* Restore fan_min */
 646	data->fan_min[nr] = fan_to_reg(min, DIV_FROM_REG(data->fan_div[nr]));
 647	w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]);
 648
 649#ifdef DEBUG
 650err_exit:
 651#endif
 652	mutex_unlock(&data->update_lock);
 653
 654	return count;
 655}
 656
 657static struct sensor_device_attribute sda_fan_input[] = {
 658	SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
 659	SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
 660	SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
 661	SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
 662	SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
 663};
 664
 665static struct sensor_device_attribute sda_fan_min[] = {
 666	SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO,
 667			show_fan_min, store_fan_min, 0),
 668	SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO,
 669			show_fan_min, store_fan_min, 1),
 670	SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO,
 671			show_fan_min, store_fan_min, 2),
 672	SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO,
 673			show_fan_min, store_fan_min, 3),
 674	SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO,
 675			show_fan_min, store_fan_min, 4),
 676};
 677
 678static struct sensor_device_attribute sda_fan_div[] = {
 679	SENSOR_ATTR(fan1_div, S_IWUSR | S_IRUGO,
 680			show_fan_div, store_fan_div, 0),
 681	SENSOR_ATTR(fan2_div, S_IWUSR | S_IRUGO,
 682			show_fan_div, store_fan_div, 1),
 683	SENSOR_ATTR(fan3_div, S_IWUSR | S_IRUGO,
 684			show_fan_div, store_fan_div, 2),
 685	SENSOR_ATTR(fan4_div, S_IWUSR | S_IRUGO,
 686			show_fan_div, store_fan_div, 3),
 687	SENSOR_ATTR(fan5_div, S_IWUSR | S_IRUGO,
 688			show_fan_div, store_fan_div, 4),
 689};
 690
 691static struct sensor_device_attribute sda_fan_beep[] = {
 692	SENSOR_ATTR(fan1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 6),
 693	SENSOR_ATTR(fan2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 7),
 694	SENSOR_ATTR(fan3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 11),
 695	SENSOR_ATTR(fan4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 21),
 696	SENSOR_ATTR(fan5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 22),
 697};
 698
 699static struct sensor_device_attribute sda_fan_alarm[] = {
 700	SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
 701	SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
 702	SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
 703	SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21),
 704	SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22),
 705};
 706
 707/* read/write PWMs */
 708static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
 709				char *buf)
 710{
 711	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 712	int nr = sensor_attr->index;
 713	struct w83791d_data *data = w83791d_update_device(dev);
 714	return sprintf(buf, "%u\n", data->pwm[nr]);
 715}
 716
 717static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
 718		const char *buf, size_t count)
 719{
 720	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 721	struct i2c_client *client = to_i2c_client(dev);
 722	struct w83791d_data *data = i2c_get_clientdata(client);
 723	int nr = sensor_attr->index;
 724	unsigned long val;
 725
 726	if (kstrtoul(buf, 10, &val))
 727		return -EINVAL;
 728
 729	mutex_lock(&data->update_lock);
 730	data->pwm[nr] = clamp_val(val, 0, 255);
 731	w83791d_write(client, W83791D_REG_PWM[nr], data->pwm[nr]);
 732	mutex_unlock(&data->update_lock);
 733	return count;
 734}
 735
 736static struct sensor_device_attribute sda_pwm[] = {
 737	SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO,
 738			show_pwm, store_pwm, 0),
 739	SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO,
 740			show_pwm, store_pwm, 1),
 741	SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO,
 742			show_pwm, store_pwm, 2),
 743	SENSOR_ATTR(pwm4, S_IWUSR | S_IRUGO,
 744			show_pwm, store_pwm, 3),
 745	SENSOR_ATTR(pwm5, S_IWUSR | S_IRUGO,
 746			show_pwm, store_pwm, 4),
 747};
 748
 749static ssize_t show_pwmenable(struct device *dev, struct device_attribute *attr,
 750				char *buf)
 751{
 752	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 753	int nr = sensor_attr->index;
 754	struct w83791d_data *data = w83791d_update_device(dev);
 755	return sprintf(buf, "%u\n", data->pwm_enable[nr] + 1);
 756}
 757
 758static ssize_t store_pwmenable(struct device *dev,
 759		struct device_attribute *attr, const char *buf, size_t count)
 760{
 761	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 762	struct i2c_client *client = to_i2c_client(dev);
 763	struct w83791d_data *data = i2c_get_clientdata(client);
 764	int nr = sensor_attr->index;
 765	unsigned long val;
 766	u8 reg_cfg_tmp;
 767	u8 reg_idx = 0;
 768	u8 val_shift = 0;
 769	u8 keep_mask = 0;
 770
 771	int ret = kstrtoul(buf, 10, &val);
 772
 773	if (ret || val < 1 || val > 3)
 774		return -EINVAL;
 775
 776	mutex_lock(&data->update_lock);
 777	data->pwm_enable[nr] = val - 1;
 778	switch (nr) {
 779	case 0:
 780		reg_idx = 0;
 781		val_shift = 2;
 782		keep_mask = 0xf3;
 783		break;
 784	case 1:
 785		reg_idx = 0;
 786		val_shift = 4;
 787		keep_mask = 0xcf;
 788		break;
 789	case 2:
 790		reg_idx = 1;
 791		val_shift = 2;
 792		keep_mask = 0xf3;
 793		break;
 794	}
 795
 796	reg_cfg_tmp = w83791d_read(client, W83791D_REG_FAN_CFG[reg_idx]);
 797	reg_cfg_tmp = (reg_cfg_tmp & keep_mask) |
 798					data->pwm_enable[nr] << val_shift;
 799
 800	w83791d_write(client, W83791D_REG_FAN_CFG[reg_idx], reg_cfg_tmp);
 801	mutex_unlock(&data->update_lock);
 802
 803	return count;
 804}
 805static struct sensor_device_attribute sda_pwmenable[] = {
 806	SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
 807			show_pwmenable, store_pwmenable, 0),
 808	SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
 809			show_pwmenable, store_pwmenable, 1),
 810	SENSOR_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
 811			show_pwmenable, store_pwmenable, 2),
 812};
 813
 814/* For Smart Fan I / Thermal Cruise */
 815static ssize_t show_temp_target(struct device *dev,
 816			struct device_attribute *attr, char *buf)
 817{
 818	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 819	struct w83791d_data *data = w83791d_update_device(dev);
 820	int nr = sensor_attr->index;
 821	return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp_target[nr]));
 822}
 823
 824static ssize_t store_temp_target(struct device *dev,
 825		struct device_attribute *attr, const char *buf, size_t count)
 826{
 827	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 828	struct i2c_client *client = to_i2c_client(dev);
 829	struct w83791d_data *data = i2c_get_clientdata(client);
 830	int nr = sensor_attr->index;
 831	long val;
 832	u8 target_mask;
 833
 834	if (kstrtol(buf, 10, &val))
 835		return -EINVAL;
 836
 837	mutex_lock(&data->update_lock);
 838	data->temp_target[nr] = TARGET_TEMP_TO_REG(val);
 839	target_mask = w83791d_read(client,
 840				W83791D_REG_TEMP_TARGET[nr]) & 0x80;
 841	w83791d_write(client, W83791D_REG_TEMP_TARGET[nr],
 842				data->temp_target[nr] | target_mask);
 843	mutex_unlock(&data->update_lock);
 844	return count;
 845}
 846
 847static struct sensor_device_attribute sda_temp_target[] = {
 848	SENSOR_ATTR(temp1_target, S_IWUSR | S_IRUGO,
 849			show_temp_target, store_temp_target, 0),
 850	SENSOR_ATTR(temp2_target, S_IWUSR | S_IRUGO,
 851			show_temp_target, store_temp_target, 1),
 852	SENSOR_ATTR(temp3_target, S_IWUSR | S_IRUGO,
 853			show_temp_target, store_temp_target, 2),
 854};
 855
 856static ssize_t show_temp_tolerance(struct device *dev,
 857			struct device_attribute *attr, char *buf)
 858{
 859	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 860	struct w83791d_data *data = w83791d_update_device(dev);
 861	int nr = sensor_attr->index;
 862	return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp_tolerance[nr]));
 863}
 864
 865static ssize_t store_temp_tolerance(struct device *dev,
 866		struct device_attribute *attr, const char *buf, size_t count)
 867{
 868	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 869	struct i2c_client *client = to_i2c_client(dev);
 870	struct w83791d_data *data = i2c_get_clientdata(client);
 871	int nr = sensor_attr->index;
 872	unsigned long val;
 873	u8 target_mask;
 874	u8 reg_idx = 0;
 875	u8 val_shift = 0;
 876	u8 keep_mask = 0;
 877
 878	if (kstrtoul(buf, 10, &val))
 879		return -EINVAL;
 880
 881	switch (nr) {
 882	case 0:
 883		reg_idx = 0;
 884		val_shift = 0;
 885		keep_mask = 0xf0;
 886		break;
 887	case 1:
 888		reg_idx = 0;
 889		val_shift = 4;
 890		keep_mask = 0x0f;
 891		break;
 892	case 2:
 893		reg_idx = 1;
 894		val_shift = 0;
 895		keep_mask = 0xf0;
 896		break;
 897	}
 898
 899	mutex_lock(&data->update_lock);
 900	data->temp_tolerance[nr] = TOL_TEMP_TO_REG(val);
 901	target_mask = w83791d_read(client,
 902			W83791D_REG_TEMP_TOL[reg_idx]) & keep_mask;
 903	w83791d_write(client, W83791D_REG_TEMP_TOL[reg_idx],
 904			(data->temp_tolerance[nr] << val_shift) | target_mask);
 905	mutex_unlock(&data->update_lock);
 906	return count;
 907}
 908
 909static struct sensor_device_attribute sda_temp_tolerance[] = {
 910	SENSOR_ATTR(temp1_tolerance, S_IWUSR | S_IRUGO,
 911			show_temp_tolerance, store_temp_tolerance, 0),
 912	SENSOR_ATTR(temp2_tolerance, S_IWUSR | S_IRUGO,
 913			show_temp_tolerance, store_temp_tolerance, 1),
 914	SENSOR_ATTR(temp3_tolerance, S_IWUSR | S_IRUGO,
 915			show_temp_tolerance, store_temp_tolerance, 2),
 916};
 917
 918/* read/write the temperature1, includes measured value and limits */
 919static ssize_t show_temp1(struct device *dev, struct device_attribute *devattr,
 920				char *buf)
 921{
 922	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 923	struct w83791d_data *data = w83791d_update_device(dev);
 924	return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[attr->index]));
 925}
 926
 927static ssize_t store_temp1(struct device *dev, struct device_attribute *devattr,
 928				const char *buf, size_t count)
 929{
 930	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 931	struct i2c_client *client = to_i2c_client(dev);
 932	struct w83791d_data *data = i2c_get_clientdata(client);
 933	int nr = attr->index;
 934	long val;
 935	int err;
 936
 937	err = kstrtol(buf, 10, &val);
 938	if (err)
 939		return err;
 940
 941	mutex_lock(&data->update_lock);
 942	data->temp1[nr] = TEMP1_TO_REG(val);
 943	w83791d_write(client, W83791D_REG_TEMP1[nr], data->temp1[nr]);
 944	mutex_unlock(&data->update_lock);
 945	return count;
 946}
 947
 948/* read/write temperature2-3, includes measured value and limits */
 949static ssize_t show_temp23(struct device *dev, struct device_attribute *devattr,
 950				char *buf)
 951{
 952	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
 953	struct w83791d_data *data = w83791d_update_device(dev);
 954	int nr = attr->nr;
 955	int index = attr->index;
 956	return sprintf(buf, "%d\n", TEMP23_FROM_REG(data->temp_add[nr][index]));
 957}
 958
 959static ssize_t store_temp23(struct device *dev,
 960				struct device_attribute *devattr,
 961				const char *buf, size_t count)
 962{
 963	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
 964	struct i2c_client *client = to_i2c_client(dev);
 965	struct w83791d_data *data = i2c_get_clientdata(client);
 966	long val;
 967	int err;
 968	int nr = attr->nr;
 969	int index = attr->index;
 970
 971	err = kstrtol(buf, 10, &val);
 972	if (err)
 973		return err;
 974
 975	mutex_lock(&data->update_lock);
 976	data->temp_add[nr][index] = TEMP23_TO_REG(val);
 977	w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2],
 978				data->temp_add[nr][index] >> 8);
 979	w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2 + 1],
 980				data->temp_add[nr][index] & 0x80);
 981	mutex_unlock(&data->update_lock);
 982
 983	return count;
 984}
 985
 986static struct sensor_device_attribute_2 sda_temp_input[] = {
 987	SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0),
 988	SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0),
 989	SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0),
 990};
 991
 992static struct sensor_device_attribute_2 sda_temp_max[] = {
 993	SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
 994			show_temp1, store_temp1, 0, 1),
 995	SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR,
 996			show_temp23, store_temp23, 0, 1),
 997	SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR,
 998			show_temp23, store_temp23, 1, 1),
 999};
1000
1001static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
1002	SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1003			show_temp1, store_temp1, 0, 2),
1004	SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1005			show_temp23, store_temp23, 0, 2),
1006	SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1007			show_temp23, store_temp23, 1, 2),
1008};
1009
1010/*
1011 * Note: The bitmask for the beep enable/disable is different than
1012 * the bitmask for the alarm.
1013 */
1014static struct sensor_device_attribute sda_temp_beep[] = {
1015	SENSOR_ATTR(temp1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 4),
1016	SENSOR_ATTR(temp2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 5),
1017	SENSOR_ATTR(temp3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 1),
1018};
1019
1020static struct sensor_device_attribute sda_temp_alarm[] = {
1021	SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
1022	SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
1023	SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
1024};
1025
1026/* get realtime status of all sensors items: voltage, temp, fan */
1027static ssize_t alarms_show(struct device *dev, struct device_attribute *attr,
1028			   char *buf)
1029{
1030	struct w83791d_data *data = w83791d_update_device(dev);
1031	return sprintf(buf, "%u\n", data->alarms);
1032}
1033
1034static DEVICE_ATTR_RO(alarms);
1035
1036/* Beep control */
1037
1038#define GLOBAL_BEEP_ENABLE_SHIFT	15
1039#define GLOBAL_BEEP_ENABLE_MASK		(1 << GLOBAL_BEEP_ENABLE_SHIFT)
1040
1041static ssize_t show_beep_enable(struct device *dev,
1042				struct device_attribute *attr, char *buf)
1043{
1044	struct w83791d_data *data = w83791d_update_device(dev);
1045	return sprintf(buf, "%d\n", data->beep_enable);
1046}
1047
1048static ssize_t show_beep_mask(struct device *dev,
1049				struct device_attribute *attr, char *buf)
1050{
1051	struct w83791d_data *data = w83791d_update_device(dev);
1052	return sprintf(buf, "%d\n", BEEP_MASK_FROM_REG(data->beep_mask));
1053}
1054
1055
1056static ssize_t store_beep_mask(struct device *dev,
1057				struct device_attribute *attr,
1058				const char *buf, size_t count)
1059{
1060	struct i2c_client *client = to_i2c_client(dev);
1061	struct w83791d_data *data = i2c_get_clientdata(client);
1062	int i;
1063	long val;
1064	int err;
1065
1066	err = kstrtol(buf, 10, &val);
1067	if (err)
1068		return err;
1069
1070	mutex_lock(&data->update_lock);
1071
1072	/*
1073	 * The beep_enable state overrides any enabling request from
1074	 * the masks
1075	 */
1076	data->beep_mask = BEEP_MASK_TO_REG(val) & ~GLOBAL_BEEP_ENABLE_MASK;
1077	data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
1078
1079	val = data->beep_mask;
1080
1081	for (i = 0; i < 3; i++) {
1082		w83791d_write(client, W83791D_REG_BEEP_CTRL[i], (val & 0xff));
1083		val >>= 8;
1084	}
1085
1086	mutex_unlock(&data->update_lock);
1087
1088	return count;
1089}
1090
1091static ssize_t store_beep_enable(struct device *dev,
1092				struct device_attribute *attr,
1093				const char *buf, size_t count)
1094{
1095	struct i2c_client *client = to_i2c_client(dev);
1096	struct w83791d_data *data = i2c_get_clientdata(client);
1097	long val;
1098	int err;
1099
1100	err = kstrtol(buf, 10, &val);
1101	if (err)
1102		return err;
1103
1104	mutex_lock(&data->update_lock);
1105
1106	data->beep_enable = val ? 1 : 0;
1107
1108	/* Keep the full mask value in sync with the current enable */
1109	data->beep_mask &= ~GLOBAL_BEEP_ENABLE_MASK;
1110	data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
1111
1112	/*
1113	 * The global control is in the second beep control register
1114	 * so only need to update that register
1115	 */
1116	val = (data->beep_mask >> 8) & 0xff;
1117
1118	w83791d_write(client, W83791D_REG_BEEP_CTRL[1], val);
1119
1120	mutex_unlock(&data->update_lock);
1121
1122	return count;
1123}
1124
1125static struct sensor_device_attribute sda_beep_ctrl[] = {
1126	SENSOR_ATTR(beep_enable, S_IRUGO | S_IWUSR,
1127			show_beep_enable, store_beep_enable, 0),
1128	SENSOR_ATTR(beep_mask, S_IRUGO | S_IWUSR,
1129			show_beep_mask, store_beep_mask, 1)
1130};
1131
1132/* cpu voltage regulation information */
1133static ssize_t cpu0_vid_show(struct device *dev,
1134			     struct device_attribute *attr, char *buf)
1135{
1136	struct w83791d_data *data = w83791d_update_device(dev);
1137	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
1138}
1139
1140static DEVICE_ATTR_RO(cpu0_vid);
1141
1142static ssize_t vrm_show(struct device *dev, struct device_attribute *attr,
1143			char *buf)
1144{
1145	struct w83791d_data *data = dev_get_drvdata(dev);
1146	return sprintf(buf, "%d\n", data->vrm);
1147}
1148
1149static ssize_t vrm_store(struct device *dev, struct device_attribute *attr,
1150			 const char *buf, size_t count)
1151{
1152	struct w83791d_data *data = dev_get_drvdata(dev);
1153	unsigned long val;
1154	int err;
1155
1156	/*
1157	 * No lock needed as vrm is internal to the driver
1158	 * (not read from a chip register) and so is not
1159	 * updated in w83791d_update_device()
1160	 */
1161
1162	err = kstrtoul(buf, 10, &val);
1163	if (err)
1164		return err;
1165
1166	if (val > 255)
1167		return -EINVAL;
1168
1169	data->vrm = val;
1170	return count;
1171}
1172
1173static DEVICE_ATTR_RW(vrm);
1174
1175#define IN_UNIT_ATTRS(X) \
1176	&sda_in_input[X].dev_attr.attr,	\
1177	&sda_in_min[X].dev_attr.attr,	\
1178	&sda_in_max[X].dev_attr.attr,	\
1179	&sda_in_beep[X].dev_attr.attr,	\
1180	&sda_in_alarm[X].dev_attr.attr
1181
1182#define FAN_UNIT_ATTRS(X) \
1183	&sda_fan_input[X].dev_attr.attr,	\
1184	&sda_fan_min[X].dev_attr.attr,		\
1185	&sda_fan_div[X].dev_attr.attr,		\
1186	&sda_fan_beep[X].dev_attr.attr,		\
1187	&sda_fan_alarm[X].dev_attr.attr
1188
1189#define TEMP_UNIT_ATTRS(X) \
1190	&sda_temp_input[X].dev_attr.attr,	\
1191	&sda_temp_max[X].dev_attr.attr,		\
1192	&sda_temp_max_hyst[X].dev_attr.attr,	\
1193	&sda_temp_beep[X].dev_attr.attr,	\
1194	&sda_temp_alarm[X].dev_attr.attr
1195
1196static struct attribute *w83791d_attributes[] = {
1197	IN_UNIT_ATTRS(0),
1198	IN_UNIT_ATTRS(1),
1199	IN_UNIT_ATTRS(2),
1200	IN_UNIT_ATTRS(3),
1201	IN_UNIT_ATTRS(4),
1202	IN_UNIT_ATTRS(5),
1203	IN_UNIT_ATTRS(6),
1204	IN_UNIT_ATTRS(7),
1205	IN_UNIT_ATTRS(8),
1206	IN_UNIT_ATTRS(9),
1207	FAN_UNIT_ATTRS(0),
1208	FAN_UNIT_ATTRS(1),
1209	FAN_UNIT_ATTRS(2),
1210	TEMP_UNIT_ATTRS(0),
1211	TEMP_UNIT_ATTRS(1),
1212	TEMP_UNIT_ATTRS(2),
1213	&dev_attr_alarms.attr,
1214	&sda_beep_ctrl[0].dev_attr.attr,
1215	&sda_beep_ctrl[1].dev_attr.attr,
1216	&dev_attr_cpu0_vid.attr,
1217	&dev_attr_vrm.attr,
1218	&sda_pwm[0].dev_attr.attr,
1219	&sda_pwm[1].dev_attr.attr,
1220	&sda_pwm[2].dev_attr.attr,
1221	&sda_pwmenable[0].dev_attr.attr,
1222	&sda_pwmenable[1].dev_attr.attr,
1223	&sda_pwmenable[2].dev_attr.attr,
1224	&sda_temp_target[0].dev_attr.attr,
1225	&sda_temp_target[1].dev_attr.attr,
1226	&sda_temp_target[2].dev_attr.attr,
1227	&sda_temp_tolerance[0].dev_attr.attr,
1228	&sda_temp_tolerance[1].dev_attr.attr,
1229	&sda_temp_tolerance[2].dev_attr.attr,
1230	NULL
1231};
1232
1233static const struct attribute_group w83791d_group = {
1234	.attrs = w83791d_attributes,
1235};
1236
1237/*
1238 * Separate group of attributes for fan/pwm 4-5. Their pins can also be
1239 * in use for GPIO in which case their sysfs-interface should not be made
1240 * available
1241 */
1242static struct attribute *w83791d_attributes_fanpwm45[] = {
1243	FAN_UNIT_ATTRS(3),
1244	FAN_UNIT_ATTRS(4),
1245	&sda_pwm[3].dev_attr.attr,
1246	&sda_pwm[4].dev_attr.attr,
1247	NULL
1248};
1249
1250static const struct attribute_group w83791d_group_fanpwm45 = {
1251	.attrs = w83791d_attributes_fanpwm45,
1252};
1253
1254static int w83791d_detect_subclients(struct i2c_client *client)
1255{
1256	struct i2c_adapter *adapter = client->adapter;
1257	int address = client->addr;
1258	int i, id;
1259	u8 val;
1260
1261	id = i2c_adapter_id(adapter);
1262	if (force_subclients[0] == id && force_subclients[1] == address) {
1263		for (i = 2; i <= 3; i++) {
1264			if (force_subclients[i] < 0x48 ||
1265			    force_subclients[i] > 0x4f) {
1266				dev_err(&client->dev,
1267					"invalid subclient "
1268					"address %d; must be 0x48-0x4f\n",
1269					force_subclients[i]);
1270				return -ENODEV;
1271			}
1272		}
1273		w83791d_write(client, W83791D_REG_I2C_SUBADDR,
1274					(force_subclients[2] & 0x07) |
1275					((force_subclients[3] & 0x07) << 4));
1276	}
1277
1278	val = w83791d_read(client, W83791D_REG_I2C_SUBADDR);
1279
1280	if (!(val & 0x88) && (val & 0x7) == ((val >> 4) & 0x7)) {
1281		dev_err(&client->dev,
1282			"duplicate addresses 0x%x, use force_subclient\n", 0x48 + (val & 0x7));
1283		return -ENODEV;
1284	}
1285
1286	if (!(val & 0x08))
1287		devm_i2c_new_dummy_device(&client->dev, adapter, 0x48 + (val & 0x7));
1288
1289	if (!(val & 0x80))
1290		devm_i2c_new_dummy_device(&client->dev, adapter, 0x48 + ((val >> 4) & 0x7));
1291
1292	return 0;
1293}
1294
1295
1296/* Return 0 if detection is successful, -ENODEV otherwise */
1297static int w83791d_detect(struct i2c_client *client,
1298			  struct i2c_board_info *info)
1299{
1300	struct i2c_adapter *adapter = client->adapter;
1301	int val1, val2;
1302	unsigned short address = client->addr;
1303
1304	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1305		return -ENODEV;
1306
1307	if (w83791d_read(client, W83791D_REG_CONFIG) & 0x80)
1308		return -ENODEV;
1309
1310	val1 = w83791d_read(client, W83791D_REG_BANK);
1311	val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
1312	/* Check for Winbond ID if in bank 0 */
1313	if (!(val1 & 0x07)) {
1314		if ((!(val1 & 0x80) && val2 != 0xa3) ||
1315		    ((val1 & 0x80) && val2 != 0x5c)) {
1316			return -ENODEV;
1317		}
1318	}
1319	/*
1320	 * If Winbond chip, address of chip and W83791D_REG_I2C_ADDR
1321	 * should match
1322	 */
1323	if (w83791d_read(client, W83791D_REG_I2C_ADDR) != address)
1324		return -ENODEV;
1325
1326	/* We want bank 0 and Vendor ID high byte */
1327	val1 = w83791d_read(client, W83791D_REG_BANK) & 0x78;
1328	w83791d_write(client, W83791D_REG_BANK, val1 | 0x80);
1329
1330	/* Verify it is a Winbond w83791d */
1331	val1 = w83791d_read(client, W83791D_REG_WCHIPID);
1332	val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
1333	if (val1 != 0x71 || val2 != 0x5c)
1334		return -ENODEV;
1335
1336	strscpy(info->type, "w83791d", I2C_NAME_SIZE);
1337
1338	return 0;
1339}
1340
1341static int w83791d_probe(struct i2c_client *client)
1342{
1343	struct w83791d_data *data;
1344	struct device *dev = &client->dev;
1345	int i, err;
1346	u8 has_fanpwm45;
1347
1348#ifdef DEBUG
1349	int val1;
1350	val1 = w83791d_read(client, W83791D_REG_DID_VID4);
1351	dev_dbg(dev, "Device ID version: %d.%d (0x%02x)\n",
1352			(val1 >> 5) & 0x07, (val1 >> 1) & 0x0f, val1);
1353#endif
1354
1355	data = devm_kzalloc(&client->dev, sizeof(struct w83791d_data),
1356			    GFP_KERNEL);
1357	if (!data)
1358		return -ENOMEM;
1359
1360	i2c_set_clientdata(client, data);
1361	mutex_init(&data->update_lock);
1362
1363	err = w83791d_detect_subclients(client);
1364	if (err)
1365		return err;
1366
1367	/* Initialize the chip */
1368	w83791d_init_client(client);
1369
1370	/*
1371	 * If the fan_div is changed, make sure there is a rational
1372	 * fan_min in place
1373	 */
1374	for (i = 0; i < NUMBER_OF_FANIN; i++)
1375		data->fan_min[i] = w83791d_read(client, W83791D_REG_FAN_MIN[i]);
1376
1377	/* Register sysfs hooks */
1378	err = sysfs_create_group(&client->dev.kobj, &w83791d_group);
1379	if (err)
1380		return err;
1381
1382	/* Check if pins of fan/pwm 4-5 are in use as GPIO */
1383	has_fanpwm45 = w83791d_read(client, W83791D_REG_GPIO) & 0x10;
1384	if (has_fanpwm45) {
1385		err = sysfs_create_group(&client->dev.kobj,
1386					 &w83791d_group_fanpwm45);
1387		if (err)
1388			goto error4;
1389	}
1390
1391	/* Everything is ready, now register the working device */
1392	data->hwmon_dev = hwmon_device_register(dev);
1393	if (IS_ERR(data->hwmon_dev)) {
1394		err = PTR_ERR(data->hwmon_dev);
1395		goto error5;
1396	}
1397
1398	return 0;
1399
1400error5:
1401	if (has_fanpwm45)
1402		sysfs_remove_group(&client->dev.kobj, &w83791d_group_fanpwm45);
1403error4:
1404	sysfs_remove_group(&client->dev.kobj, &w83791d_group);
1405	return err;
1406}
1407
1408static void w83791d_remove(struct i2c_client *client)
1409{
1410	struct w83791d_data *data = i2c_get_clientdata(client);
1411
1412	hwmon_device_unregister(data->hwmon_dev);
1413	sysfs_remove_group(&client->dev.kobj, &w83791d_group);
1414}
1415
1416static void w83791d_init_client(struct i2c_client *client)
1417{
1418	struct w83791d_data *data = i2c_get_clientdata(client);
1419	u8 tmp;
1420	u8 old_beep;
1421
1422	/*
1423	 * The difference between reset and init is that reset
1424	 * does a hard reset of the chip via index 0x40, bit 7,
1425	 * but init simply forces certain registers to have "sane"
1426	 * values. The hope is that the BIOS has done the right
1427	 * thing (which is why the default is reset=0, init=0),
1428	 * but if not, reset is the hard hammer and init
1429	 * is the soft mallet both of which are trying to whack
1430	 * things into place...
1431	 * NOTE: The data sheet makes a distinction between
1432	 * "power on defaults" and "reset by MR". As far as I can tell,
1433	 * the hard reset puts everything into a power-on state so I'm
1434	 * not sure what "reset by MR" means or how it can happen.
1435	 */
1436	if (reset || init) {
1437		/* keep some BIOS settings when we... */
1438		old_beep = w83791d_read(client, W83791D_REG_BEEP_CONFIG);
1439
1440		if (reset) {
1441			/* ... reset the chip and ... */
1442			w83791d_write(client, W83791D_REG_CONFIG, 0x80);
1443		}
1444
1445		/* ... disable power-on abnormal beep */
1446		w83791d_write(client, W83791D_REG_BEEP_CONFIG, old_beep | 0x80);
1447
1448		/* disable the global beep (not done by hard reset) */
1449		tmp = w83791d_read(client, W83791D_REG_BEEP_CTRL[1]);
1450		w83791d_write(client, W83791D_REG_BEEP_CTRL[1], tmp & 0xef);
1451
1452		if (init) {
1453			/* Make sure monitoring is turned on for add-ons */
1454			tmp = w83791d_read(client, W83791D_REG_TEMP2_CONFIG);
1455			if (tmp & 1) {
1456				w83791d_write(client, W83791D_REG_TEMP2_CONFIG,
1457					tmp & 0xfe);
1458			}
1459
1460			tmp = w83791d_read(client, W83791D_REG_TEMP3_CONFIG);
1461			if (tmp & 1) {
1462				w83791d_write(client, W83791D_REG_TEMP3_CONFIG,
1463					tmp & 0xfe);
1464			}
1465
1466			/* Start monitoring */
1467			tmp = w83791d_read(client, W83791D_REG_CONFIG) & 0xf7;
1468			w83791d_write(client, W83791D_REG_CONFIG, tmp | 0x01);
1469		}
1470	}
1471
1472	data->vrm = vid_which_vrm();
1473}
1474
1475static struct w83791d_data *w83791d_update_device(struct device *dev)
1476{
1477	struct i2c_client *client = to_i2c_client(dev);
1478	struct w83791d_data *data = i2c_get_clientdata(client);
1479	int i, j;
1480	u8 reg_array_tmp[3];
1481	u8 vbat_reg;
1482
1483	mutex_lock(&data->update_lock);
1484
1485	if (time_after(jiffies, data->last_updated + (HZ * 3))
1486			|| !data->valid) {
1487		dev_dbg(dev, "Starting w83791d device update\n");
1488
1489		/* Update the voltages measured value and limits */
1490		for (i = 0; i < NUMBER_OF_VIN; i++) {
1491			data->in[i] = w83791d_read(client,
1492						W83791D_REG_IN[i]);
1493			data->in_max[i] = w83791d_read(client,
1494						W83791D_REG_IN_MAX[i]);
1495			data->in_min[i] = w83791d_read(client,
1496						W83791D_REG_IN_MIN[i]);
1497		}
1498
1499		/* Update the fan counts and limits */
1500		for (i = 0; i < NUMBER_OF_FANIN; i++) {
1501			/* Update the Fan measured value and limits */
1502			data->fan[i] = w83791d_read(client,
1503						W83791D_REG_FAN[i]);
1504			data->fan_min[i] = w83791d_read(client,
1505						W83791D_REG_FAN_MIN[i]);
1506		}
1507
1508		/* Update the fan divisor */
1509		for (i = 0; i < 3; i++) {
1510			reg_array_tmp[i] = w83791d_read(client,
1511						W83791D_REG_FAN_DIV[i]);
1512		}
1513		data->fan_div[0] = (reg_array_tmp[0] >> 4) & 0x03;
1514		data->fan_div[1] = (reg_array_tmp[0] >> 6) & 0x03;
1515		data->fan_div[2] = (reg_array_tmp[1] >> 6) & 0x03;
1516		data->fan_div[3] = reg_array_tmp[2] & 0x07;
1517		data->fan_div[4] = (reg_array_tmp[2] >> 4) & 0x07;
1518
1519		/*
1520		 * The fan divisor for fans 0-2 get bit 2 from
1521		 * bits 5-7 respectively of vbat register
1522		 */
1523		vbat_reg = w83791d_read(client, W83791D_REG_VBAT);
1524		for (i = 0; i < 3; i++)
1525			data->fan_div[i] |= (vbat_reg >> (3 + i)) & 0x04;
1526
1527		/* Update PWM duty cycle */
1528		for (i = 0; i < NUMBER_OF_PWM; i++) {
1529			data->pwm[i] =  w83791d_read(client,
1530						W83791D_REG_PWM[i]);
1531		}
1532
1533		/* Update PWM enable status */
1534		for (i = 0; i < 2; i++) {
1535			reg_array_tmp[i] = w83791d_read(client,
1536						W83791D_REG_FAN_CFG[i]);
1537		}
1538		data->pwm_enable[0] = (reg_array_tmp[0] >> 2) & 0x03;
1539		data->pwm_enable[1] = (reg_array_tmp[0] >> 4) & 0x03;
1540		data->pwm_enable[2] = (reg_array_tmp[1] >> 2) & 0x03;
1541
1542		/* Update PWM target temperature */
1543		for (i = 0; i < 3; i++) {
1544			data->temp_target[i] = w83791d_read(client,
1545				W83791D_REG_TEMP_TARGET[i]) & 0x7f;
1546		}
1547
1548		/* Update PWM temperature tolerance */
1549		for (i = 0; i < 2; i++) {
1550			reg_array_tmp[i] = w83791d_read(client,
1551					W83791D_REG_TEMP_TOL[i]);
1552		}
1553		data->temp_tolerance[0] = reg_array_tmp[0] & 0x0f;
1554		data->temp_tolerance[1] = (reg_array_tmp[0] >> 4) & 0x0f;
1555		data->temp_tolerance[2] = reg_array_tmp[1] & 0x0f;
1556
1557		/* Update the first temperature sensor */
1558		for (i = 0; i < 3; i++) {
1559			data->temp1[i] = w83791d_read(client,
1560						W83791D_REG_TEMP1[i]);
1561		}
1562
1563		/* Update the rest of the temperature sensors */
1564		for (i = 0; i < 2; i++) {
1565			for (j = 0; j < 3; j++) {
1566				data->temp_add[i][j] =
1567					(w83791d_read(client,
1568					W83791D_REG_TEMP_ADD[i][j * 2]) << 8) |
1569					w83791d_read(client,
1570					W83791D_REG_TEMP_ADD[i][j * 2 + 1]);
1571			}
1572		}
1573
1574		/* Update the realtime status */
1575		data->alarms =
1576			w83791d_read(client, W83791D_REG_ALARM1) +
1577			(w83791d_read(client, W83791D_REG_ALARM2) << 8) +
1578			(w83791d_read(client, W83791D_REG_ALARM3) << 16);
1579
1580		/* Update the beep configuration information */
1581		data->beep_mask =
1582			w83791d_read(client, W83791D_REG_BEEP_CTRL[0]) +
1583			(w83791d_read(client, W83791D_REG_BEEP_CTRL[1]) << 8) +
1584			(w83791d_read(client, W83791D_REG_BEEP_CTRL[2]) << 16);
1585
1586		/* Extract global beep enable flag */
1587		data->beep_enable =
1588			(data->beep_mask >> GLOBAL_BEEP_ENABLE_SHIFT) & 0x01;
1589
1590		/* Update the cpu voltage information */
1591		i = w83791d_read(client, W83791D_REG_VID_FANDIV);
1592		data->vid = i & 0x0f;
1593		data->vid |= (w83791d_read(client, W83791D_REG_DID_VID4) & 0x01)
1594				<< 4;
1595
1596		data->last_updated = jiffies;
1597		data->valid = true;
1598	}
1599
1600	mutex_unlock(&data->update_lock);
1601
1602#ifdef DEBUG
1603	w83791d_print_debug(data, dev);
1604#endif
1605
1606	return data;
1607}
1608
1609#ifdef DEBUG
1610static void w83791d_print_debug(struct w83791d_data *data, struct device *dev)
1611{
1612	int i = 0, j = 0;
1613
1614	dev_dbg(dev, "======Start of w83791d debug values======\n");
1615	dev_dbg(dev, "%d set of Voltages: ===>\n", NUMBER_OF_VIN);
1616	for (i = 0; i < NUMBER_OF_VIN; i++) {
1617		dev_dbg(dev, "vin[%d] is:     0x%02x\n", i, data->in[i]);
1618		dev_dbg(dev, "vin[%d] min is: 0x%02x\n", i, data->in_min[i]);
1619		dev_dbg(dev, "vin[%d] max is: 0x%02x\n", i, data->in_max[i]);
1620	}
1621	dev_dbg(dev, "%d set of Fan Counts/Divisors: ===>\n", NUMBER_OF_FANIN);
1622	for (i = 0; i < NUMBER_OF_FANIN; i++) {
1623		dev_dbg(dev, "fan[%d] is:     0x%02x\n", i, data->fan[i]);
1624		dev_dbg(dev, "fan[%d] min is: 0x%02x\n", i, data->fan_min[i]);
1625		dev_dbg(dev, "fan_div[%d] is: 0x%02x\n", i, data->fan_div[i]);
1626	}
1627
1628	/*
1629	 * temperature math is signed, but only print out the
1630	 * bits that matter
1631	 */
1632	dev_dbg(dev, "%d set of Temperatures: ===>\n", NUMBER_OF_TEMPIN);
1633	for (i = 0; i < 3; i++)
1634		dev_dbg(dev, "temp1[%d] is: 0x%02x\n", i, (u8) data->temp1[i]);
1635	for (i = 0; i < 2; i++) {
1636		for (j = 0; j < 3; j++) {
1637			dev_dbg(dev, "temp_add[%d][%d] is: 0x%04x\n", i, j,
1638				(u16) data->temp_add[i][j]);
1639		}
1640	}
1641
1642	dev_dbg(dev, "Misc Information: ===>\n");
1643	dev_dbg(dev, "alarm is:     0x%08x\n", data->alarms);
1644	dev_dbg(dev, "beep_mask is: 0x%08x\n", data->beep_mask);
1645	dev_dbg(dev, "beep_enable is: %d\n", data->beep_enable);
1646	dev_dbg(dev, "vid is: 0x%02x\n", data->vid);
1647	dev_dbg(dev, "vrm is: 0x%02x\n", data->vrm);
1648	dev_dbg(dev, "=======End of w83791d debug values========\n");
1649	dev_dbg(dev, "\n");
1650}
1651#endif
1652
1653module_i2c_driver(w83791d_driver);
1654
1655MODULE_AUTHOR("Charles Spirakis <bezaur@gmail.com>");
1656MODULE_DESCRIPTION("W83791D driver");
1657MODULE_LICENSE("GPL");